SWDB/application/entity/K_Skill_Level.php

<?php
    /**
     * Skill level entity file.
     *
     * Creates the entity and makes it available.
     *
     * @category Entity
     */

    /**
     * Require dependent entities if not present.
     */
    require_once(PATH::ENTITY . "Entity.php");

    /**
     * Monster skill level.
     *
     * Represents an object from the table 'k_monster_skill_upgrade'.
     *
     * @category Entity
     */
    class K_Skill_Level extends Entity{

        /**
         * @var int Skill identifier.
         */
        public $skill;

        /**
         * @var int Skill level.
         */
        public $level;

        /**
         * @var string Upgrade description.
         */
        public $description;

        /**
         * Constructor.
         *
         * Searches the database and retrieves the information about the
         * skill level, populating it and it's items.
         *
         * @param int $skill Skill identifier.
         * @param int $level Skill level.
         * @global resource Database connection.
         */
        public function __construct($skill, $level){

            global $db;

            $statement = $db->prepare("
              SELECT
                skill,
                level,
                description
              FROM k_skill_level
              WHERE
                skill = :skill AND
                level = :level;
            ");
            $statement->bindValue(':skill', $skill, SQLITE3_INTEGER);
            $statement->bindValue(':level', $level, SQLITE3_INTEGER);
            $r = $statement->execute()->fetchArray(SQLITE3_ASSOC);
            if ($r){
                $this->skill = $r["skill"];
                $this->level = $r["level"];
                $this->description = HTML::e($r["description"]);
            }
        }
    }
?>